Retirement Benefit Plans

9 Months Ended

Sep. 30, 2017

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Retirement Benefit Plans

12. Retirement Benefit Plans

Our defined benefit pension plans and postretirement medical plan are described in Note 13 of our annual report on Form 10-K for the year ended December 31, 2016. We have contributed $145 and $198 during the third quarter of 2017 and $410 and $493 during the first nine months of 2017 to our pension plans and postretirement medical plan, respectively.

The components of the net periodic (benefit) cost for the three and nine months endedSeptember 30, 2017 and 2016 were as follows:

	Three Months Ended
	September 30
	Pension Benefits												Postretirement
	U.S. Plans						Non-U.S. Plans						Medical Benefits
	2017			2016			2017			2016			2017		2016
Service cost	$	—		$	88		$	124		$	32		$	6	$	25
Interest cost	373			414			96			96			91		99
Expected return on plan assets	(581		)	(599		)	(101		)	(89		)	—		—
Amortization of net actuarial loss	12			13			—			—			—		—
Amortization of prior service cost	—			10			50			29			—		—
Foreign currency	—			—			135			(57		)	—		—
Net periodic (benefit) cost	$	(196	)	$	(74	)	$	304		$	11		$	97	$	124

	Nine Months Ended
	September 30
	Pension Benefits												Postretirement
	U.S. Plans						Non-U.S. Plans						Medical Benefits
	2017			2016			2017			2016			2017		2016
Service cost	$	—		$	265		$	172		$	104		$	46	$	73
Interest cost	1,153			1,244			315			304			272		298
Expected return on plan assets	(1,752		)	(1,799		)	(298		)	(283		)	—		—
Amortization of net actuarial loss	33			30			—			—			—		—
Amortization of prior service cost	—			31			146			93			—		—
Settlement charge	205			—			—			—			—		—
Foreign currency	—			—			364			(33		)	—		—
Net periodic (benefit) cost	$	(361	)	$	(229	)	$	699		$	185		$	318	$	371